Congressional District # 02
NUTTING TRUCK & CASTER CO.EPA ID# MND006154017
Last Updated: March, 2015
The Nutting Truck and Caster Site consists of an 8.6-acre property located at 1221 Division Street in the city of Faribault, Rice County, Minnesota, along with contaminated groundwater beneath the site. The property is bounded on the west by Prairie Avenue and on the southeast by railroad tracks. The property is currently owned by Praire Avenue Leasing Ltd. and is leased for commercial and light industrial purposes. The area surrounding the Site includes properties with residential, commercial, and light industrial uses. All nearby properties are connected to the Faribault municipal drinking water supply.
Between 1891 and 1984, the property was used for manufacturing and distribution of casters, wheels, hand trucks, and towline trucks. From 1959 to 1979, a seepage pit in the west central area of the site was used to deposit waste and sludges, including waste solvents. In response to a 1979 Notice of Noncompliance by the Minnesota Pollution Control Agency (MPCA), the seepage pit was excavated to meet residential soil standards, backfilled with clean fill and covered with concrete. Groundwater contamination was also found to be associated with the property.
The Site is part of an Enforcement Deferral Pilot Project agreement between EPA and MPCA, with MPCA serving as the lead agency at the site.
Threats and Contaminants
Trichloroethylene (TCE) was the main contaminant of concern in groundwater at the Site at the time it was listed on the National Priorities List (NPL), and TCE is currently the only contaminant of concern. During the early and mid-1980's, investigations detected TCE and other contaminants in the shallow groundwater of the glacial outwash formation and the St. Peter Sandstone. This contamination was down-gradient of the former seepage pit. TCE remains in groundwater at the site at very low levels.
In the late 1970s, soil sampling was performed at the site under MPCA direction to determine whether non-foundry wastes were disposed of in the former surface depression on the site. The samples showed that the contamination was limited to surface soils and was likely the result of spillage during drum handling. This threat was removed by cleanup prior to listing the site on the NPL. EPA placed the site on the NPL in 1983 due to the remaining groundwater contamination.
In 1984, the MPCA and the potentially responsible party (PRP) signed a Consent Order to conduct a remedial investigation (RI) at the site. In 1987, the PRPs signed a second Consent Order for performance of the remedial action (RA). This Consent Order and associated Remedial Action Plan required Nutting to extract groundwater until a concentration of 50 parts per billions (ppb) of TCE was consistently achieved in the shallow aquifer at the property boundary. Nutting constructed a groundwater extraction system which began operating in 1987. Two extraction wells were installed: one in the glacial outwash and one in the St. Peter Sandstone. The extracted groundwater was treated on-site using a gravity cascade to remove TCE and other volatile organic compounds and was discharged to the municipal stormwater sewer.
In 2003, the Remedial Action Plan was amended to lower the cleanup level for TCE to 5 ppb. This is the current MDH Health Risk Limit (HRL) and is considered the concentration in groundwater that can safely be consumed on a daily basis over a lifetime. The federal Maximum Contaminant Level (MCL) for TCE, used in the regulation of public water supplies, is also 5 ppb. In 2004, the extraction wells were shut down with the approval of the MPCA. Groundwater monitoring continued through May of 2007 and showed that the plume boundaries were stable and contaminant concentrations were continuing to decrease. At that time, TCE contamination in groundwater remained at 16 ppb in the location of the former disposal pit, but it was expected to continue to decrease through natural attenuation. In 2008, an Environmental Covenant and Easement was signed to limit use of groundwater at the site which exceeded MCLs and the State subsequently deleted the Site from its Permanent List of Priorities (PLP). In 2010, EPA signed a Record of Decision documenting that no action under the federal Superfund law, CERCLA, was needed at the site.
In 2014, at the request of EPA, MPCA re-installed two groundwater monitoring wells at the site to confirm the concentration of TCE remaining in groundwater. Results indicate that TCE is still present at a level slightly above the drinking water standard. Currently, MPCA is continuing to monitor groundwater, which is expected to continue to improve over time.
Congressional InterestIn 2011, Senator Amy Klobuchar inquired on behalf of a constituent regarding EPA's plans for deleting the Site from the NPL. EPA responded that it plans to delete the site from the NPL as soon as groundwater monitoring shows that groundwater contaminant concentrations meet, and will continue to meet, drinking water standards. This is expected to occur through natural attenuation of the small plume that currently remains beneath the site.
ContactsRemedial Project Manager, U.S. EPA
leah evison (firstname.lastname@example.org)
Community Involvement Coordinator, U.S. EPA
AliasesNUTTING TRUCK & CASTER CO